Term Name:	H zone
Synonyms:	H band, H disc
Definition:	A relatively pale zone traversing the center of the A band of a sarcomere, visible in relaxed muscle fibers; consists of the central portion of thick (myosin) filaments that are not overlapped by thin (actin) filaments.
Ontology:	GO: Cellular Component [GO:0031673]    QuickGO    AmiGO